1993 CHEVROLET CORVETTE heater

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The rear window defogger and power
window defogger .ody aperate when the
Do pot attach a temparary vehicke
license across the defogger grid on the,
rear window.
' engine is ru~g.
Flow-Throuflh Ventilation System
Your corvette's flow-through
ventilation system supplies outside air
into
the vehicle when it is moving.
Outside air will also enter the vehicle
when the heater or the air conditioning
fan is mag.
Ventilation Tips
Kkp the hood and €rant air inlet free
-of ice, snow, or any other obstruction
(such as leaves). The heater and.
defroster dl work far better,
reducing the chance of fogging the
inside of you windows.
When you enter a vehicle in cold
weather, turn the blower fan to the
highest speed f6r.a few moments
before driving off. This helps clear the
intake ducts of 'snow and moisture,
.and reduces the chance of fogging the
inside a€ your windows.
seats clear of objects. This- helps air to
circulate t.hroughout your vehicle. See
the Ind& under Engim? Exhaust.
Keep the air path u,nder the frwt .

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Run your engbe only as. long -as you
must. This saves fuel. When you run the
engine,
make it go a little faster than
just idle. That is, push the accelerator
slightly. This uses less fuel for the heat
that you get and it keeps the battery
charged. You will need a well-charged
battery
to restart the vehicle, and
possibly €or signaling later on with your
headlights. Let the
heater mn €or a
while.
Then> shut the engine off and close the
window almost all the way to preserve
the heat. Start the engine again and
repeat this only when you feel really
qncomfortable
from the cold. But do it
as little as possible. Preserve the fuel as
long as you can. To help keep warm,
you can get out of the vehicle and do
some fairly vigorous exercises every
haK-hour or so until help comes.
If You're Stuck in Deep Snow
You should twn your ASR system off if
you're stuck in deep snow. See the
Index under Accelerafion Slip
Regulation (ASR) Sysleem. This manual
explains how to get the vehicle out
of
deep snow without damaging it. See the
Index under Rocking Your Vehicle.
Towing a Trailer
Your Corvette is neither designed nor
intended to tow a trailer.
20 I

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If No Steam is Coming from Your
Engine:
If you get the overheat warning but see
or hear no steam, the problem may not
be too serious. Sometimes the engine
can get .a Me too hot when you:
9 Climb a long hill on a hot day.
4 Stop after high speed driving.
Idle for long periods in traffic.
If you get the overheat warning with no
sign of steam, try this for a minute or so:
1 I Turn off your air conditioner.
2. Turn on your heater to €ull hot at the
highest
fan speed and open the
window as necessary.
3. Try to keep your engine under load
(in
a -drive gear where the engine
runs slower).
If you no longer have the overheat
warning,.you
cm drive. Just to be safe,
drive slower for about ten minutes., If
the warning doesn't co~e back on, you'
can drive normally.
I€ the warning continues, pull over,
stop, and park your vehicle right away.
If there's still no sign of steam, you can
idle the engine for two or three minutes
while you're parked, to see jfthe
warning
stops. But then, if you still
have
the warning, TURN OFF THE
ENGINE AND GET EVERYONE OUT
OF THE VEHICLE until it cools down.
You- may decide not to l.23 the ho0.d but
to get service help right away.
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Cooling System
When you decide it% safe to lift the
hood, heri’s.what you’ll see-:
(A) Coolant.recovery tank
(B) Coolant-high fillreservoir with
(C) Electric engine fans
pressure c~p
If the caulant inside the csolaht
recovery tank is boiling, don’t do;
anything else until it cuols dam.
When it is cwl, rtmove- the .coolant
reqvery tank cap and I-ook at - the
dipstick. The
Coolant level should be at
or above-COLD.
If it isn”t, you may have a leak in the
radiator hoses, heater hoses, radiator,
water pmp, vapor vent pipes or hoses
or coolant pump.

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Engine Overheating (COW.)
A Heater adradiator hoses, ’.-
.and oiher enginelparts, can
.be.very-hot. Don’t touch them ...If
you do, you canbe burned.
Don’t run the engine
if there is a
leak. If
you run the engine,.it could
lose all coolant. That could cause
an engine fire, and you could be
burned. Get any leak fixed before
you drive the vehicle.
216
If there seems to be no leak, check to
see
if the electric engine fans are
running.
If the engine is overheating,
both fans
should be running. If they
aren’t, your vehicle needs service.
How to Add Coolant to the Coolant
Recovery Tank
If you haven’t found a problem yet, but
the coolant level isn’t at
or above
COLD,
add a 50/50 mixture of clean
water (preferably distilled) and a proper
antifreeze at the coolant recovery tank.
(See the
Index under Coolant for more
information about the proper coolant
mix. )

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Sevvice & Appearance Care
Engine Block Heater
(LTl ENGINE, CANADA ONLY)
An engine block heater can be a big
help if you have to park outside in very
cold weather, 0°F (-18°C) or colder. If
your vehicle has an engine block heater,
see the index under Engine Block
Heater.
154
What to Do with Used, Oil Air Cleaner
A
Used engine- oil contains.
things that have caused skin ..
,cancer in laboratory animals. Don't
let used oil stay.on your .skin for
very long. Clean you skin and nails
with soap and water, or a good
hand cleaner. Wash or properly
throw away ciuthing or rags
containing used
engine oil.
Refer to the Maintenance Schedule to
determine when
to replace the air filter.
Used
oil can be a real threat to the
environment. If you change your own
oil, be sure to drain all free-flowing oil
from the filter before disposal. Don't
ever dispose of oil by pouring it on the
ground, into sewers, or into streams or
bodies
of water. Instead, recycle it by
taking it to a place that collects used oil.
If you have a problem properly
disposing
of yo-ur used oil, ask your:
dealer, a service station or a local
recycling center €or
help.
L
;ee the Index under Scheduled
taintmame. Services.
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CAUTION I

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ABS Active Light ........................... 117
ABS Service Light ........................... 117
ABS Light ......................................... 117
Acceleration Slip Regu’laticin
(ASR) System .......................... 89,. 175
Accessory Wiring . Plug .................... 147
Action Center, Corvette ................... 343
Adding
Brake Fluid
.......... ........... ............ . 27 1
Electrical Equipment ...... 65, 146, 304
Engine Coolant ..... 216, 262,311,3.27
Engine Oil ............................... 250, 31 1
Hydraulic Clatch Fluid’ ......... 260, 3 17
Power Steeting Fluid ............ 269, 318
Rear Axle Fluid ..................... 262, 318
Sound Equipment ........................... 146
Transmission Fluids. ..... 25.9,260, 317
Windshield Washer
Fluid ............................... 84, 269, 3 17
Air .Bag (see Supplemental Inflatable
AirCieaner Filter ..................... 254, 312
.Air Conditioner ....................... 136., ‘142
Alcohol, .Driving Under thi Influence
of ..................................................... 169
Restraint)
Alcohol in Gasoline ......................... 242
Aluminum Wheels
Cleaning
................................ 296. 301
Antenna, Power ............................... 161
Antifreeze ......... 216, 262, 263, 311., 317
Anti-Lock Br.& e
Removing ....................................... 228
System (ABS) ....................... 117? 1-73
Anti-Lock Brake System Light ........ 117
Ashtray and Lighters .......................... 96
ASR Off Light .............................. .... 116
ASR System ................................. 89, 175
Cassette Playek ........................... 149
Music System) ............................ 152
Music System) ............................ 155
Appearance Care .............................. 289
ASR Active Light ............................. 115
Audio Systems ................................. 146
AM/FM Stereo with
.AM/F M. Stereo-with
Cassette Player
(Delco-Base@
AM/FM Stereo with CassetteKD
Player (Delco-Bose*
Care of Audio Systems ................. 160
-Radio Reception. For the Best ...... 159
Setting.the Clock ............................ I48
Automatic Electroriic Climate
Aptomatic
Transmission
Control ........................................... 140
Adding Fluid ................................. 259
Axle, Rea Liniited-Slip ....................... 76
Checking Fluid ................................. 2.56
Shifting., ....................................... 67, 78
&ry ..................................... 205, 272
Jump Starting ..........................?........ 205
Warnings .......................... 205, 206, 272
Battery Warning . Gage ..................... 105
Battery Warning Light ....................... 118
Blizzard ............ ..i.. ........................... 200
Block Heater, Engine ......................... 66
“Blowout, ” Tire .................................. 224
Brake AdjustmenL
..................................... 178
Fluid ...................................... 270, 317
Master Cylinder ............................ 270
Parking ............................................. 77
Pedal Travel .................................... 178
Warning Light .................................. 106
Wear Indicators .............................. 177
351 I..
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Underbody Maintenance ............... 302
Warnings ............................... 289, 297
Weatherstrips
................................ 301
Windshield and Wiper Blades ...... 295
Cleaning Your C.onvertible Top ....... 297
Climate Control
................................ 136
Air Conditioner ...................... 136, 142
Automatic Electronic Climate Control
........................................ 140
Heater .................................... 137, 144
Ventilation ............................ 137, 145
Clock, Setting the ............................ 148
Clusters, Instrument Panel .............. 100
Compact Disc Player
(see
Audio Systems)
Compact Spare Tire .......................... 235
Concealed Headlights ......................... 90
Control of a Vehicle ........................... 171
Convertible Hardtop ........................ 128
Convertible
Top ............................... 124
Coolant ............. 216, 262, 263, 311, 317
Adding .. 216,218,222,262,263, 266
Pressure Cap ................................. 268
Convex Outside Mirror ...................... 93
Checking &
High Fill Reservoir
Low Coolant Light ......................... 112
Proper Mixture to Use ........... 217. 262
S.a€ety
Warnings .... 106 ,. 217.263.264. 267
Temperature Gage ........................ 106
Corvette Action Center .................... 343
Cruise Control
................................... -84
Cup Holder ......................................... 96
Curves,
Driving on ........................... 179
Customer Assistance Infomation ... 341
DAB (Delayed Accessory Bus) ........ 57
Daytime Running Lights ................... 90
Defensive Driving
............................ 168
Dead Battery: What to . Do ............... 205
Defogger, Power Mirror .................... 139
Defogger. Rear Window ........... 138. 144
Defrosting Window .......................... 137
Dimensions ...................................... 3 16
Directional Controls. Electronic Climate
.......................................... 145
Door Ajar Light ....................’............. 107
Door Locks .......................................... 43
Dcmnshifting ................................. 69, 73
.Driver Idormation Center ............... 112
Driver Pasition .................................. 23
Driving ............................................. 163
At Night ........................................... 184
City ................................................ 190
Controlling a Skid .......................... 183
Drunken ......................................... 169
Freeway ........................................... 191
Hill and Mountain ....................... 195
Driver’s Side SIR (“Air Bag”) ........... 26
Defensively .................................... 168
In a Foreign Country ..................... 243
In Fog, Mist and Haze .................. 189
In the Rain ...................................... 186
Long Distance ............................... 193
Loss of Control ............................. 183
On Cmes ...................................... 179
Passing .................................... 87, 181
Through Deep Standing Water ....... 65
Winter Driving ............................... 198
Drunken Driving ............................ 169
Electric Outside Mirror Control ..... 93
Electrical Equipment,
Electronic Heating
. and
.Adding
.............................. 65., 146, 304
Air Conditioning ............................. 310